how to get rid of scale bug

Question

I have an infestation of scale on my 2 magnolias, a bay tree and an acer. The bugs appear on the stems and branches and have secreted a white substance which appears like a sticky white cotton wool. I have been blasting them off daily for about a week with high pressure hose, but they return but seem to be less daily. Should I just carry on with my treatment or is there an easier way??

Answer 1

Hose down the plants and then treat them with neem oil. It is both safe and effective against these pests. Here is more information: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm